Young’s modulus of the material of a wire is 18×10¹¹ dyne cm⁻².its value in SI is

⇦

⇨

Young’s modulus of the material of a wire is 18 x 10¹¹ dyne cm⁻². Its value in SI is

Options

(a) 18 x 10¹⁵ Nm⁻²
(b) 18 x 10¹⁰ Nm⁻²
(c) 18 x 10⁹ Nm⁻²
(d) 18 x 10¹² Nm⁻²

Correct Answer:

18 x 10¹⁰ Nm⁻²

Explanation:

1 dyne = 10⁻⁵ Newton

1 cm  = 10⁻² m

So, 18 x 10¹¹ x 10⁻⁵ / 10⁻⁴ 

=18 x 10¹⁰ Nm⁻²

Related Questions:

1. The potential energy of a long spring when stretched by 2 cm is U.
2. A remote-sensing satellite of earth revolves in a circular orbit at a height
3. A sample of HCl gas is placed in an electric field of 5 x 10⁴ N/C
4. A boat taken 2h to travel 8km and back in still water.If the velocity of water 4 km/h
5. The ratio of the acceleration for a solid sphere(mass m and radius R)rolling down

Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Physical World and Measurement (103)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends